[okl4-developer] serial driver l4_kdb

Abi Nourai anourai at ok-labs.com
Tue May 27 00:58:24 EST 2008


On 26/05/2008, at 11:31 PM, Geoffrey Lee wrote:

>>
>> The problem you are seeing is a result of both the kernel and  
>> iguana using
>> KDB for IO - I'd definitely recommend switching over to using a  
>> "real"
>> serial device for applications.
>>
>
> In addition to all of the points mentioned by Josh, I thought I would
> just try to clear up this point.  We see similar problems on other
> boards as well.  This is mainly because there is a user level
> driver for serial, but the kernel also has a driver for it, that is
> independent of the one in user space.  Unfortunately at the moment
> there is no way around this other than make the kernel and user space
> serial driver use independent serial ports.
>
> In practice the kernel driver gets removed in a production (no debug)
> build of OKL4, so this would not be an issue in a production  
> environment.


FYI we fixed this internally within the last 2 working days and it  
will be available in the next release to the community !

Regards
Abi



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